* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
@font-face {
  font-family: cas;
  src: url(../font/cas.otf) format("opentype");
}
body {
  background-color: #000;
  min-height: 1500px;
  font-family: 'Oswald', cas;
}
nav {
  min-width: 60px;
  transition: 0.8s;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
}
nav a {
  /*[data-darkreader-inline-fill] {*/
  /*fill: var(--darkreader-inline-fill) !important;*/
  /*}*/
}
nav a svg {
  height: 40px;
  margin: 10px;
  width: 40px;
}
nav ul {
  float: right;
  width: 40%;
  list-style-type: none;
}
nav ul li {
  margin-left: 60px;
  line-height: 60px;
  display: inline-block;
}
nav ul li a {
  color: white;
  font-size: 18px;
  text-decoration: none;
  text-transform: uppercase;
}
nav.sticky {
  transition: 0.8s;
  background-color: white;
}
nav.sticky ul li a {
  color: #1e90ff;
}
div.button {
  min-height: 1000px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
div.button a {
  color: #ffffff;
  position: relative;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  padding: 10px 60px;
  transition: 1s;
  overflow: hidden;
  text-transform: uppercase;
}
div.button a span:nth-child(1) {
  position: absolute;
  height: 2px;
  width: 200%;
  top: 0;
  left: -300%;
  background: linear-gradient(90deg, transparent, #2ed573);
}
div.button a span:nth-child(2) {
  position: absolute;
  width: 2px;
  height: 200%;
  right: 0;
  top: -200%;
  background: linear-gradient(180deg, transparent, #2ed573);
}
div.button a span:nth-child(3) {
  position: absolute;
  height: 2px;
  width: 200%;
  bottom: 0;
  left: 200%;
  background: linear-gradient(270deg, transparent, #2ed573);
}
div.button a span:nth-child(4) {
  position: absolute;
  width: 2px;
  height: 200%;
  top: 100%;
  left: 0;
  background: linear-gradient(0deg, transparent, #2ed573);
}
div.button a:hover {
  background-color: #2ed573;
  letter-spacing: 4px;
  font-size: 24px;
  transition: 1s;
  transition-delay: 0.2s;
  box-shadow: 0 0 10px #2ed573, 0 0 40px #2ed573, 0 0 80px #2ed573;
}
div.button a:hover span:nth-child(1) {
  left: 200%;
  transition: 1s;
}
div.button a:hover span:nth-child(2) {
  top: 200%;
  transition: 1s;
}
div.button a:hover span:nth-child(3) {
  left: -200%;
  transition: 1s;
}
div.button a:hover span:nth-child(4) {
  top: -300%;
  transition: 1s;
}
